SIST EN 300 347-1 V2.2.2:2005
(Main)Second edition of the V.5.2 interface will align with the second editi on of the V5.1 interface.
Vmesniki V pri digitalnih krajevnih telefonskih centralah (LE) - Vmesnik V5.2 za podporo dostopovnemu omrežju (AN) - 1. del: Specifikacija vmesnika V5.2
General Information
Standards Content (sample)
SLOVENSKI STANDARD
SIST EN 300 347-1 V2.2.2:2005
01-april-2005
Vmesniki V pri digitalnih krajevnih telefonskih centralah (LE) - Vmesnik V5.2 za
podporo dostopovnemu omrežju (AN) - 1. del: Specifikacija vmesnika V5.2
V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access
Network (AN); Part 1: V5.2 interface specificationTa slovenski standard je istoveten z: EN 300 347-1 Version 2.2.2
ICS:
33.040.30 Komutacijski in signalizacijski Switching and signalling
sistem systems
SIST EN 300 347-1 V2.2.2:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 300 347-1 V2.2.2:2005
ETSI EN 300 347-1 V2.2.2 (1999-12)
European Standard (Telecommunications series)
V interfaces at the digital Local Exchange (LE);
V5.2 interface for the support of Access Network (AN);
Part 1: V5.2 interface specification
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SIST EN 300 347-1 V2.2.2:2005
2 ETSI EN 300 347-1 V2.2.2 (1999-12)
Reference
REN/SPS-09060-1
Keywords
V interface, V5 interface, LE, AN
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ETSI
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SIST EN 300 347-1 V2.2.2:2005
3 ETSI EN 300 347-1 V2.2.2 (1999-12)
Contents
Intellectual Property Rights..............................................................................................................................10
Foreword...........................................................................................................................................................10
Introduction ......................................................................................................................................................11
1 Scope ......................................................................................................................................................13
2 References..............................................................................................................................................14
3 Definitions and abbreviations ................................................................................................................15
3.1 Definitions........................................................................................................................................................15
3.2 Abbreviations ...................................................................................................................................................17
4 Electrical and physical interface requirements ......................................................................................17
5 Procedural interface requirements .........................................................................................................18
5.1 Link control requirements and procedures .......................................................................................................18
5.1.1 Link-ID verification....................................................................................................................................18
5.1.2 Link blocking..............................................................................................................................................18
6 Services and architecture aspects and requirements ..............................................................................19
6.1 On-demand services .........................................................................................................................................19
6.1.1 PSTN ..........................................................................................................................................................19
6.1.2 ISDN Basic Access (ISDN-BA) .................................................................................................................19
6.1.3 ISDN Primary Rate Access (ISDN-PRA)...................................................................................................20
6.2 Permanent Line (PL) capability........................................................................................................................20
6.3 Semi-permanent leased line..............................................................................................................................20
6.4 Permanent leased line service...........................................................................................................................20
7 Control and provisioning........................................................................................................................21
7.1 Control principles.............................................................................................................................................21
7.1.1 General requirements and assumptions.......................................................................................................21
7.1.2 Control of ISDN-BA user port for the PL capability ..................................................................................23
7.1.3 Control of ISDN-PRA user ports when the PL capability is provided........................................................23
7.1.3.1 Statements and assumptions ..................................................................................................................23
7.1.3.2 ISDN and PL capability ........................................................................................................................23
7.2 Provisioning strategy and requirements............................................................................................................24
7.2.1 General........................................................................................................................................................24
7.2.2 Provisioning requirements ..........................................................................................................................24
7.3 Bearer Channel Connection (BCC) ..................................................................................................................24
7.4 Protection .........................................................................................................................................................25
8 Protocol architecture and multiplexing structure...................................................................................25
8.1 Functional description ......................................................................................................................................25
8.2 Protocol requirements for PSTN and ISDN .....................................................................................................26
8.3 Time slots .........................................................................................................................................................27
8.4 Time slot allocation for physical communication channels ..............................................................................27
8.4.1 Data types for V5.2 C-paths........................................................................................................................28
8.4.2 Communication paths when PSTN is provided on a V5.2 interface ...........................................................28
8.4.3 Communication paths when ISDN is provided on a V5.2 interface............................................................28
8.5 Layer 2 sublayering and multiplexing on communication channels .................................................................29
8.6 Layer 3 multiplexing.........................................................................................................................................29
8.7 Congestion control............................................................................................................................................29
8.7.1 Flow control end to end ..............................................................................................................................29
8.7.2 Congestion control on the V5.2 interface ...................................................................................................29
8.7.3 Blocking of ISDN user ports at layer 2.......................................................................................................29
8.7.4 Flow control using LAPV5-DL mechanisms ..............................................................................................29
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SIST EN 300 347-1 V2.2.2:2005
4 ETSI EN 300 347-1 V2.2.2 (1999-12)
9 Envelope Function sublayer of LAPV5 (LAPV5-EF) ...........................................................................29
10 Data Link sublayer of LAPV5 (LAPV5-DL).........................................................................................30
10.1 Frame structure for peer-to-peer communication .............................................................................................30
10.2 Invalid frames...................................................................................................................................................30
10.3 Elements of procedures and formats of fields for data link sublayer peer-to-peer communication ..................30
10.3.1 Link address field format ............................................................................................................................30
10.3.2 Link address field variables ........................................................................................................................30
10.3.2.1 Address field extension bit (EA) ...........................................................................................................30
10.3.2.2 Command/response field bit..................................................................................................................30
10.3.2.3 V5DLaddr .............................................................................................................................................30
10.3.3 Control field formats...................................................................................................................................30
10.3.4 Control field parameters and associated state variables..............................................................................30
10.3.5 Frame types.................................................................................................................................................31
10.4 Definition of the peer-to-peer procedures of the data link sublayer .................................................................31
11 AN frame relay sublayer ........................................................................................................................31
12 Sublayer-to-sublayer communication and mapping function ................................................................31
13 General layer 3 protocol structures ........................................................................................................31
13.1 General .............................................................................................................................................................31
13.2 Information elements that appear in every message (header) ...........................................................................32
13.2.1 Protocol Discriminator information element...............................................................................................32
13.2.2 Layer 3 Address information element.........................................................................................................33
13.2.3 Message Type information element ............................................................................................................33
13.3 Other information elements ..............................................................................................................................34
13.4 Protocol message functional definition and information content......................................................................34
13.5 Codesets ...........................................................................................................................................................34
14 PSTN signalling protocol specification and layer 3 multiplexing .........................................................34
15 Control requirements and protocol ........................................................................................................34
15.1 ISDN-BA user port status indication and control.............................................................................................34
15.2 PSTN user port status indication and control ...................................................................................................35
15.3 ISDN primary rate user port status indication and control ...............................................................................35
15.3.1 General aspects ...........................................................................................................................................35
15.3.2 Events and function elements relevant for the control of the state machines ..............................................36
15.3.3 ISDN-PRA user port FSMs, AN (ISDN port) and LE (ISDN port)............................................................38
15.3.3.1 Description of the states ........................................................................................................................38
15.3.3.2 Definition of port control states.............................................................................................................38
15.3.3.2.1 ISDN-PRA user port FSM - AN (ISDN port) .................................................................................38
15.3.3.2.2 ISDN-PRA user port FSM - LE (ISDN port) ..................................................................................39
15.3.3.3 Principles and procedures .....................................................................................................................39
15.3.3.3.1 General ............................................................................................................................................39
15.3.3.3.2 Blocking ..........................................................................................................................................39
15.3.3.3.3 Blocking request..............................................................................................................................40
15.3.3.3.4 Co-ordinated unblocking .................................................................................................................40
15.3.3.3.5 User failure/network failure indication ............................................................................................40
15.3.3.3.6 Support of the permanent line capability .........................................................................................40
15.3.3.4 ISDN port FSM at the AN.....................................................................................................................41
15.3.3.5 ISDN port FSM at the LE .....................................................................................................................42
15.3.4 Performance monitoring aspects.................................................................................................................42
15.4 Control protocol ...............................................................................................................................................43
15.4.1 Control protocol message definition and content........................................................................................43
15.4.2 General message format and information element coding ..........................................................................43
15.4.3 State definition of the control protocol .......................................................................................................44
15.4.4 Control protocol procedures .......................................................................................................................44
15.4.5 Accelerated alignment of the port related protocol entities and FSMs .......................................................45
15.5 V5.2 re-provisioning procedures ......................................................................................................................45
16 Link control requirements and protocol.................................................................................................46
16.1 2 048 kbit/s layer 1 link maintenance requirements..........................................................................................47
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SIST EN 300 347-1 V2.2.2:2005
5 ETSI EN 300 347-1 V2.2.2 (1999-12)
16.1.1 Events and failure reports ...........................................................................................................................47
16.1.2 Detection algorithm for events and signals .................................................................................................48
16.1.3 V5.2 interface layer 1 link FSM..................................................................................................................48
16.1.4 Requirements and procedures for the additional functions .........................................................................50
16.2 Link control requirements and procedures .......................................................................................................50
16.2.1 The link blocking and unblocking...............................................................................................................50
16.2.2 The link identification.................................................................................................................................51
16.2.3 Events and function elements relevant for the control of the link state machines.......................................52
16.2.4 Link control FSM, AN (link) and LE (link)................................................................................................53
16.2.4.1 Description of the states ........................................................................................................................53
16.2.4.2 Definition of link control states and general co-ordination requirements..............................................54
16.2.4.2.1 Link control FSM - AN (AN_Link).................................................................................................54
16.2.4.2.2 Link control FSM - LE (LE_Link) ..................................................................................................55
16.2.4.3 Principles and procedures .....................................................................................................................55
16.2.4.3.1 General ............................................................................................................................................55
16.2.4.3.2 Link blocking...................................................................................................................................56
16.2.4.3.3 Link blocking request ......................................................................................................................56
16.2.4.3.4 Co-ordinated link unblocking ..........................................................................................................56
16.2.4.3.5 Link identification ...........................................................................................................................57
16.2.4.4 Link control FSM at the AN..................................................................................................................58
16.2.4.5 Link control FSM at the LE ..................................................................................................................59
16.3 Link control protocol........................................................................................................................................60
16.3.1 Link control protocol message definition and content ................................................................................60
16.3.1.1 LINK CONTROL message ...................................................................................................................60
16.3.1.2 LINK CONTROL ACK message..........................................................................................................60
16.3.2 Link control protocol information element definition, structure and coding...............................................61
16.3.2.1 Layer 3 address information element ....................................................................................................61
16.3.2.2 Link control function information element............................................................................................61
16.3.3 Definitions of the link control protocol states.............................................................................................62
16.3.4 Link control protocol procedure .................................................................................................................62
16.3.4.1 General..................................................................................................................................................62
16.3.4.2 Start traffic indication............................................................................................................................63
16.3.4.2.1 Normal operation.............................................................................................................................63
16.3.4.2.2 Exceptional procedures....................................................................................................................63
16.3.4.3 Stop traffic indication............................................................................................................................63
16.3.4.3.1 Normal operation.............................................................................................................................63
16.3.4.3.2 Exceptional procedures....................................................................................................................63
16.3.4.4 Link control layer 3 protocol entity procedure......................................................................................63
16.3.5 Handling of error conditions.......................................................................................................................64
16.3.5.1 Protocol discriminator error ..................................................................................................................64
16.3.5.2 Layer 3 address error.............................................................................................................................64
16.3.5.3 Message type error ................................................................................................................................64
16.3.5.4 Repeated information elements .............................................................................................................64
16.3.5.5 Mandatory information element missing...............................................................................................64
16.3.5.6 Unrecognized information element .......................................................................................................64
16.3.5.7 Content error of mandatory information elements.................................................................................65
16.3.6 Timers for the link control protocol............................................................................................................65
16.3.7 AN and LE side layer 3 protocol entity state tables....................................................................................65
17 BCC protocol elements and procedures.................................................................................................66
17.1 General .............................................................................................................................................................66
17.2 BCC protocol entity definition .........................................................................................................................68
17.2.1 Definition of BCC protocol states...............................................................................................................68
17.2.1.1 BCC states in the AN ............................................................................................................................68
17.2.1.2 BCC states in the LE .............................................................................................................................69
17.2.2 Definition of BCC protocol primitives, messages and timers .....................................................................70
17.3 BCC protocol message definition and content..................................................................................................71
17.3.1 ALLOCATION message ............................................................................................................................72
17.3.2 ALLOCATION COMPLETE message ......................................................................................................72
17.3.3 ALLOCATION REJECT message .............................................................................................................73
17.3.4 DE-ALLOCATION message......................................................................................................................73
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SIST EN 300 347-1 V2.2.2:2005
6 ETSI EN 300 347-1 V2.2.2 (1999-12)
17.3.5 DE-ALLOCATION COMPLETE message................................................................................................74
17.3.6 DE-ALLOCATION REJECT message.......................................................................................................74
17.3.7 AUDIT message .........................................................................................................................................74
17.3.8 AUDIT COMPLETE message....................................................................................................................75
17.3.9 AN FAULT message ..................................................................................................................................76
17.3.10 AN FAULT ACKNOWLEDGE message...................................................................................................76
17.3.11 PROTOCOL ERROR message...................................................................................................................76
17.4 BCC information element definition, structure and coding ..............................................................................77
17.4.1 BCC Reference Number information element ............................................................................................77
17.4.2 Other information elements.........................................................................................................................77
17.4.2.1 User Port Identification information element ........................................................................................78
17.4.2.2 ISDN Port Time Slot Identification information element......................................................................78
17.4.2.3 V5 Time Slot Identification information element..................................................................................79
17.4.2.4 Multi-Slot Map information element.....................................................................................................79
17.4.2.5 Reject Cause information element.........................................................................................................80
17.4.2.6 Protocol Error Cause information element.............................................
...
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